Coal-mining drill-post.



PATENTED JUNE 25, 1907. P1 ROMMESl E f/QW,

ru: Hanns snm: co.. wasnuhcnm, n, c.

P RMMES COAL MINING DRILL POST. APPLIGATIOEHLED 'JULY 19. 190e.

I Il "l e 2 ull-@klim "l y/ /NVE/vro M M E S o. R L M P ATTORNEYS 1m: nonni: rlrln: cu.. wAsHlNcroN. D cA UNITED STATES PAUL Roinvnis, or PITTSBURG, KANSAS. i i

PATENT OFFICE."

COAL-MINING DRILL-POST.

Specification of Letters Iatent.

Patented June 25,1907.

Application filed July 19, 1906. Serial No. 326,846.

To a/ZZ whom it 11i/ty concern/s Be it known that I, PAUL RoMMEs, a citizen of the United States, and a resident of Pittsburg, in the county of Crawford and State of Kansas, have made certain new and useful Improvements in Coal-Mining Drill- Posts, of which the following is a specification.

My invention relates to improvements in drill posts used in mining, and has for one of its objects to provide means for determining the course the drill will take before the post is firmly set and to save work and time;another object is to prevent the post from giving way when set on soft or infirm bottom; another obj ect is to secure firmness and obviate wabbling motion when drill is being operated; another object is to afford facilities for the proper adjustment of threaded box; another object is to facilitate changing drills and removing borings from drill hole another object is to afford means for attaching or connecting threaded boxings of various types and makes.

Vith these and other objects in view, my invention consists in certain novel features of construction, arrangement and combination of parts as will be hereinafter fully describedand pointed out in the claims, reference being had to the accompanying drawing, in which Figure l is a side elevation of my device as in use. Fig. 2 is a front elevation. Fig. 3 is a sectional elevation of the complete device. Fig. 4L is a perspective view of the clutch or coupling member. Fig. 5 is a sectional plan view of the arm for supporting the thread box. Fig. 6 is a horizontal section on line 6--6 of Fig. l. Fig. 7 is a similar section on line 7-7 of Fig. l. Fig. 8 is a similar section on line 8 8 of Fig. l.

The circular plate A, in the center of which and extending upwardly therefrom is a tube A, forms a foot and support for the device. The tube A has extending from its lower end upwardly to near its upper end the unthreaded central passage a, while the upper passage a is somewhat reduced and threaded to receive the shaft B which is threaded and provided with a groove extending from its lower end to a shoulder t near its upper end. On the lower end of the shaft B which is reduced and threaded, is screwed a flanged nut b2 which in being placed on said shaft is turnedto the left. This nut is of greater diameter than the upper threaded passage in tube A, hence a shoulder a2 will be formed against which nut b2 may abut and thus prevent the shaft B from being withdrawn from the tube A, said shaft and tube A forming what I term the post. The shaft B has near its upper end an enlargement B forming the shoulder t before mentioned, and above this shoulder the smooth point B2; through the shouldered portion is drilled a transverse hole to receive the turning rod B3. In- Figs. 1 and 3, I show what I term an extension point which consists of a cylindrical body B4 and a smooth point B5, said body having a socket to fit over the point B2 and having a set screw B passing through the side of same by means of which the ordinary point and the extension point may be locked together to retain adjustment. The extension point has a shoulder b3 upon which rests a sleeve B7and upon this sleeve and surrounding the upper smooth end B5 is the tubular cap B8 which has the head B9 which is flat and is to bear against the roof of the mine, as shown in Fig. 3, said cap being held immovable by the set screw B10.

In Fig. 4 I have shown what I term a cou ler or clutch'which consists of an inner tu e C provided with a threaded bore to screw on shaft B, said tube C having also an internal groove c corresponding to the groove l) in shaft B to receive a pin p to lock the two together and retain adjustment. The upper end of tube C is provided with lugs or teeth c which are intended to fit. in notches d in the upper edge of tubular sleeve D which together with the tube C forms the clutch or coupling. The sleeve D has projecting from one side, the rigid bar d2 upon which are slidably mounted the two standards or brackets E provided with openings e near their upper ends surrounded by the inwardly projecting annular flanges e to form bearing boxes for the trunnions of the thread box F which carries the threaded auger shaft F. The lower ends of the standards E have the inwardly projecting feet e2 which are slotted to fit on the bar d2. The inner tube C of the coupling is provided with an annular rim c2 at its lower end for preventing it being lifted out of sleeve D and is provided with a threaded hole to receive a set screw c3 to adjust and lock the same to shaft B. The outer sleeve D is somewhat shorter than the inner tube C and is coupled to the inner tube by the lugs or teeth c fitting in the notches d. Said outer sleeve D is also pro- IOO IOS

IIO

` to the rear.

vided with a threaded hole in which is fitted a set screw d3 provided with the handle d by means of which the tube C and sleeve D are immovably locked together. By removing the pin p which couples the sleeve to the shaft B, and tightening the set screw d3, the coupler or clutch member may be turned either way, thus raising orlowering the coupling on shaft B. The outer sleeve D may be turned independently of the inner tube C so that the arm d2 can be adjusted at various horizontal angles, said adjustment being secured by means of the teeth, notches and set screw.

The threaded box F, threaded shaft F crank F2 and drill or auger F3, are of ordinary construction, and form no part of my invention. The arm d2 which supports the threaded box F and consequently the auger F3 is placed or secured to the sleeve D in such a manner that when the device is set ready for work, that it (the arm d2) is slightly in advance toward the coal, although it is obvious that I may use other arrangements of said arm. For some types of thread box, it will be of advantage to set the arm slightly The standards E which support the thread box are of sufficient height, so that when the thread box is attached, it will swing clear of the arm, so that the drill may be pitched or elevated as desired. The object of having the anges e surrounding the bearings in the upper ends of standards, is to provide means for using boxes pro vided with short trunnions.

The object of using the teeth c/ and the notches d on the tube C and sleeve D, respectively, is to secure firmness and take strain f ofi` set screw when drill is being operated. In

order to change drills and remove borings from drill hole, the set screw on coupling is loosed, thus permitting disengagement of the teeth, so that the arm may be swung around out of the way.

In case the roof of mine is uneven, making it diicult to set post, the cap B9 may be removed from the upper end of post, or from upper end of extension B4, when same is used, so that the upper end of post which is tapered to a point, may be forced into roof. The upper face of the cap B9 should be serrated, milled or roughened in any suitable manner to insure firm hold.

The tube B7 will be of advantage when it becomes necessary to set post, with cap removed, and the roof is of infirm nature, the end of post, which as hereinbefore stated, is tapered to a point, being forced up into rof a suificientdistance, the tube serving as a shoulder and will press against roof and prevent tapered point of post from penetrating farther.

In the drawing, I have shown only one hole through the shouldered portion of post to receive turning rod B3, but I may use two or more holes crossing each other at angles to receive same. It is also obvious that I may use different types of set screw on the extension member B4.

Vhen the drill post is being set ready for work, and while turning threaded shaft to press cap BS against roof of mine, the set screw Blo in cap may be tightened but not necessarily 3 the other set screw B which 1s in body or near base of extension must be loose so as to let upper end B2 of threaded shaft B rotate or turn in socket of extension.

When extension B4 is not being used and sleeve B7 and cap B8- are placed on upper end of threaded shaft B, the set screw B1U in cap must be loose to let smoother upper end of threaded shaft turn in said cap and sleeve. Set screws are tightened to retain adjustment when machine is not in use.

I claim:

1. In a coal drilling machine, a supporting post, means for anchoring the same at its upper and lower ends, an adjustable arm carried by said post,.brackets slidably mounted on said arm, and a threaded box and auger shaft supported by said brackets.

2. In a coal drilling machine, a post having separable sections at its upper end means for anchoring the same at its upper and lower ends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm, and a threaded box and auger shaft supported by said brackets.

3. In a coal drilling machine, a post having separable and longitudinally extensible sections at its upper end, means for anchoring said post at its upper and lowerends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm, and a threaded box and auger shaft supported by said brackets.

4. In a coal drilling machine, a supporting post means for anchoring the same at its upper and lower ends, a separable coupling member carried by said post, an arm carried by said coupling member', brackets slidably mounted on said arm, and a threaded box and auger shaft supported by said brackets.

5. In a coal drilling machine, an internally threaded base member, a threaded shaft working in said base member and provided at its upper end with a tapered point, an ad- IOO IIO

justable and rotatable arm carried by said f .ed post working therein, and having a tapered point at its upper end, of a coupling member, said coupling consisting of an inner threaded tube and an outer tubular sleeve surrounding the same, an arm carried by said outer tubular sleeve, brackets slidably mounted on said arm, and means i'or locking the inner threaded tube and theouter sleeve together.

8. In a coal drilling machine, the combination with a standard and base and a threaded post working therein, and having a tapered point at its upper end, of a coupling member consisting of an internally threaded tube engaging the threaded post, said tube having an annular rim at its lower end and teeth or lugs at its upper end, a sleeve surrounding said internally threaded tube, and adapted to rotate and slide vertically thereon and having notches in its upper edge to iit the lugs or teeth at the upper end of the tube, an arm projecting to one side and forwardly from said sleeve, brackets slidably mounted on said arm, and means for rigidly locking the member of the coupling to each other and to the threaded post.

9. In a coal drilling machine, a post comprising a base standard internally threaded, a threaded shaft working therein, and provided at its upper end with a reduced tapered point, an extension having a socket therein to rit said tapered point and provided at its upper end with a tapered point, and a tubular cap adapted to fit over said extension point, and having an annular flange forming a head for the same.

10. In a coal drilling machine, the combination with a standard and base and a threaded post working therein, having a longitudinal groove and pointed upper end, a coupling member adapted to wor on said threaded shaft, said coupling member consisting of an inner internally threaded tube provided with an internal longitudinal groove, and having at its upper end a series of' lugs and at its lower end an annular rim, and an outer sleeve iitting on said inner tube, said outer sleeve having notches in its upper edge to engage the lugs of the inner tube and an arm projecting to one side and forwardly from said outer sleeve, a locking/pin adapted to t in the grooves of the threaded shaft and inner threaded tube when in register, and means for rigidly locking the inner tube and outer sleeve together against longitudinal movement.

11. In a coal drilling machine, a supporting post means for anchoring the same at its upper and lower ends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm, and a drill supported by said brackets.

l2. In a coal mining machine, a separable post means for anchoring the same at its upper and lower ends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm and a drill supported by said brackets.

13. In a coal drilling machine, a separable and longitudinally eXtensible supporting post means for anchoring the same at its upper and lowerends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm, and a drill supported by said brackets.

14. In a coal drilling machine, a longitudinally eXtensible supporting post means for anchoring the same at its upper and lower ends, an adjustable and rotatable arm carried by said post, brackets slidably mounted on said arm, and a ,threaded boX and auger shaft supported by said brackets.

PAUL ROMMES.

Witnesses:

J. B. DANA, C. N. RALEY. 

